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The X-Files (season 4)
Encyclopedia
Episodes
Episodes marked with an asterisk (*) are broadly part of the series' mytharc. Episodes with a double asterisk (**) are primary episodes in the series' Alien Mythology arc.|-
! style="background-color:#801818; color:#FFFFFF;"|№
! style="background-color:#801818; color:#FFFFFF;"|#
! style="background-color:#801818; color:#FFFFFF;"|Title
! style="background-color:#801818; color:#FFFFFF;"|Directed by
! style="background-color:#801818; color:#FFFFFF;"|Written by
! style="background-color:#801818; color:#FFFFFF;"|Original air date
! style="background-color:#801818; color:#FFFFFF;"|Production
code
! style="background-color:#801818; color:#FFFFFF;"|U.S. viewers
(millions)
|-
|}